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Proceedings Paper

A fibre optic oxygen sensor for monitoring of human breathing
Author(s): Rongsheng Chen; Andrew D. Farmery; Clive E. W. Hahn
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Paper Abstract

A reliable and cost effective fibre optic oxygen sensor for monitoring of human breathing has been developed using a normal 200μm silica core/silica cladding optical fibre and a polymer sensing matrix. The fibre optic oxygen sensor is based on the fluorescence quenching of a fluorophore by oxygen. The sensing matrix, containing immobilized Pt(II) complexes, was coated at the end of the silica core/silica cladding optical fibre. The sensitivity and time response of the sensor were evaluated using the method of luminescence lifetime measurement. The polymer substrate influence on the time response of the sensor was improved by using a fibre taper design, and the response time of the optimized sensor was less than 200ms. This silica fibre based optic oxygen sensor is suitable for monitoring of patient breathing in intensive care unit in terms of safety and low cost.

Paper Details

Date Published: 22 November 2011
PDF: 6 pages
Proc. SPIE 8199, 2011 International Conference on Optical Instruments and Technology: Optical Sensors and Applications, 819902 (22 November 2011); doi: 10.1117/12.908397
Show Author Affiliations
Rongsheng Chen, Univ. of Oxford (United Kingdom)
Andrew D. Farmery, Univ. of Oxford (United Kingdom)
Clive E. W. Hahn, Univ. of Oxford (United Kingdom)


Published in SPIE Proceedings Vol. 8199:
2011 International Conference on Optical Instruments and Technology: Optical Sensors and Applications
Brian Culshaw; YanBiao Liao; Anbo Wang; Xiaoyi Bao; Xudong Fan, Editor(s)

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